Answer this question truthfully
### Question: What causes Echinococcosis?
### Response: Echinococcus is common in:
Africa Central Asia Southern South America The Mediterranean The Middle East In the United States, the disease is very rare. However, it has been reported in California, Arizona, New Mexico, and Utah.
Humans become infected when they swallow eggs in contaminated food. The infection is carried to the liver, where cysts form. Cysts can also form in the:
Brain Bones Kidney Lungs Skeletal muscles Spleen